67449730013 has 2 divisors, whose sum is σ = 67449730014. Its totient is φ = 67449730012.

The previous prime is 67449730003. The next prime is 67449730081. The reversal of 67449730013 is 31003794476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46613673604 + 20836056409 = 215902^2 + 144347^2 .

It is a cyclic number.

It is not a de Polignac number, because 67449730013 - 2²⁰ = 67448681437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67449730003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33724865006 + 33724865007.

It is an arithmetic number, because the mean of its divisors is an integer number (33724865007).

Almost surely, 2^67449730013 is an apocalyptic number.

It is an amenable number.

67449730013 is a deficient number, since it is larger than the sum of its proper divisors (1).

67449730013 is an equidigital number, since it uses as much as digits as its factorization.

67449730013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 67449730013 in words is "sixty-seven billion, four hundred forty-nine million, seven hundred thirty thousand, thirteen".